【正文】 possible. Now if you will take off your clothes, we will fit the new clothes on you in front of the mirror. 6. be to和 be going to be to 表示客觀安排或受人指示而做某事。 will 在陳述句中用于各人稱，在爭求意見時常用于第二人稱。 Christine was an invalid all her life. (含義：她已不在人間。 2. 一般過去時的用法 1）在確定的過去時間里所發(fā)生的動作或存在的狀態(tài)。1) 經(jīng)常性或習(xí)慣性的動作，常與表示頻腮度的時間狀語連用。再如： Now watch me, I switch on the current and stand back. 第二句中的 now是進(jìn)行時的標(biāo)志，表示正在進(jìn)行的動作的客觀狀況，所以后句用一般現(xiàn)在時。 比較： 一般過去時表示的動作或狀態(tài)都已成為過去，現(xiàn)已不復(fù)存在。 4. 一般將來時 1) shall用于第一人稱，常被 will 所代替。 He is about to leave for Beijing. 注意： be about to 不能與 tomorrow, next week 等表示明確將來時的時間狀語連用。 It is the first time that I have visited the city. It was the third time that the boy had been late. 2） This is the… that… 結(jié)構(gòu)， that 從句要用現(xiàn)在完成時 . This is the best film that I’ve (ever) seen. 這是我看過的最好的電影。 I have lived here for more than twenty years. I have lived here since I was born.. My aunt has worked in a clinic since 1949. Some new oilfields have been opened up since 1976. I have known Xiao Li since she was a little girl. My brother has been in the Youth League for two years. I have not heard from my uncle for a long time. 注意：并非有 for 作為時間狀語的句子都用現(xiàn)在完成時。 He has pleted the work. 他已完成了那項工作。 2）動詞 +不定式 ； 動詞 +賓語 +不定式 ask, beg, choose, expect , hate, help intend like, love, need prefer, prepare, promise, want, wish… I like to keep everything tidy. 我喜歡每件東西都保持整潔。 2. 不定式作補(bǔ)語 1) 動詞 +賓語 +不定式 (to do) advise allow appoint believe cause challenge mand pel consider declare drive enable encourage find forbid force guess hire imagine impel induce inform instruct invite judge know like order permit persuade remind report request require select send state suppose tell think train trust understand urge warn 例句： a. Father will not allow us to play on the street. 父親不讓我們在街上玩耍。 Acknowledge, believe, consider, think, declare(聲稱 ), discover, fancy(設(shè)想 ), feel find, guess, judge, imagine, know, prove, see(理解 ), show, suppose, take(以為 ), understand We consider Tom to be one of the best students in our class. 我們認(rèn)為湯姆是班上最好的學(xué)生之一。 . 不定式作主語 1） It’s easy (for me) to do easy, difficult, hard, important, possible, impossible, fortable, necessary, better。 (錯 )It is to believe to see. 4. It’s for It’s of sb. 1） for sb. 常用于表示事物的特征特點，表示客觀形式的形容詞，如 easy, hard, difficult, interesting, impossible 等： It’s very hard for him to study two languages. 對他來說學(xué)兩門外語是很難的。祈使句的主語常被省略，因為這個主語很明確地是聽話人 you。t be standing in the rain . 別站在雨里。 例如： What a fine day it is today ! 今天天氣多好??！ How fine it is today ! 今天天氣多好?。? What a lovely son you have !你有個多可愛的兒子??！ How lovely your son